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How much time do you lose due to curves and turns?

How much time do you lose due to curves and turns?
In previous articles we have already discussed the spectacular developments in recent years in the quest of running the marathon sub 2 hours. As you will know, Eliud Kipchoge finally succeeded with his phenomenal 1:59:40 in Vienna, a fantastic performance that is rightly viewed by all marathon runners with the greatest awe. In the search for the marathon...

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How to calculate your race time from your Target Power?

How to calculate your race time from your Target Power?
This paper is a direct result of a question from one of our readers, namely JanWillem Nieboer. He is an enthusiastic user of the Stryd and asked us how he could calculate his race time from the Target Power as defined by Stryd? We studied this in detail and derived a very nice and simple formula that answers JanWillem’s question. With this new...

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Nike ZoomX Vaporfly Next%, a truly revolutionary running shoe

Nike ZoomX Vaporfly Next%, a truly revolutionary running shoe
“yes, it is the first time I am wearing these shoes and I think they helped me” The 21-year-old Ethiopian Letesenbet Gidey ran the world best time for 15 K women in the Nijmegen NN Zevenheuvelenloop (The Netherlands). Her time was with 44:20. She ran on the Nike ZoomX Vaporfly Next% shoes for the first time. She thinks the shoes helped her, said...

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How does the wind impact your 5K-race time?

How does the wind impact your 5K-race time?
In earlier books and papers, we frequently discuss the worldwide quest of runners, coaches and running scientists for options to optimize the running performance through reducing the air-resistance. Cyclists and speed-skaters  have been doing this for a long time already by developing optimal aerodynamic conditions (clothing, frames, body position,...

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Use less energy while running at a constant speed with the help of LSS

Use less energy while running at a constant speed with the help of LSS
The holy grail of distance running has always been to use less energy and oxygen at a certain speed. The recent breakthrough of power meters raises the question whether we can use the new running metrics to learn how to run smarter, more economical and faster? In recent running research, together with Radboud University of Nijmegen, the Netherlands,...

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